Riello Burners 3739950 Montage- Und Bedienungsanleitung Seite 29

6. FAULTS / SOLUTIONS
Here below you can find some causes and the possible solutions for some problems that could cause a fail-
ure to start or a bad working of the burner.
A fault usually makes the lock-out lamp light which is situated inside the reset button of the control box
(3, fig. 1, page 1).
When lock out lamp lights the burner will attempt to light only after pushing the reset button. After this if the
burner functions correctly, the lock-out can be attributed to a temporary fault.
If however the lock out continues the cause must be determined and the solution found.
FAULTS
The burner doesn't
start when the limit
thermostat closes.
Burner runs normal-
ly in the prepurge
and ignition cycle
and locks out after 5
seconds ca.
Burner starts with an
ignition delay.
WARNING
The manufacturer cannot accept responsibility for any damage to persons, animals or property due to error
in installation or in the burner adjustment, or due to improper or unreasonable use or non observance of the
technical instruction enclosed with the burner, or due to the intervention of unqualified personnel.
2623
POSSIBLE CAUSES
Lack of electrical supply.
The photoresistance sees false light.
Start thermostats are faulty.
The connections in the control box
are wrongly inserted.
The photoresistance is dirty.
The photoresistance is defective.
Flame moves away or fails.
The ignition electrodes are wrongly
positioned.
Air output is too high.
Nozzle dirty or worn.
Check presence of voltage in the
L1 - N clamps of the 7 pin plug.
Check the conditions of the fuses.
Check that safety thermostat is not
lock out.
Eliminate the light.
Replace them.
Check and connect completely all the
plugs.
Clear it.
Change it.
Check pressure and output of the fuel.
Check air output.
Change nozzle.
Check the coil of solenoid valve.
Adjust them according to the
instructions of this manual.
Set the air output according to the
instructions of this manual.
Replace it.
9 GB
SOLUTION